MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Achromatopsia
An hereditary disorder of sight due to a lack of cone vision - that type of vision provided by the cone photoreceptors in the retina. In the normal eye, there are some 6 million cone photoreceptors; they are located largely in the center…
Read the definitionRandom terms
Show more- Hemolytic Referring to hemolysis, the destruction of red blood cells which leads to the release of hemoglobin from…
- Nucleotide >A nitrogenous base (A, G, T, or C in DNA; A, G, U, or C in RNA), >A phosphate molecule, and >A sugar…
- Flat condyloma A manifestation of the secondary stage of syphilis that takes the form of broad flat wartlike growths in…
- Hematuria, microscopic Blood in the urine that is visible only under a microscope. There is so little blood that it cannot be seen…
- Southern blot A test commonly used in molecular biology and genetics, the purpose of the test being to check for a match…
- Eicosanoid A lipid mediator of inflammation derived from the 20-carbon atom arachidonic acid (20 in Greek is 'eicosa')…
- Heel bone Formally called the calcaneus. A more or less rectangular bone at the back of the foot. The words 'calcaneus'…
- Macrocephaly An abnormally large head. The opposite of macrocephaly is microcephaly (an abnormally small head)
- Vector In medicine, a vector is a carrier. The best way to understand a vector is to recall its origin as a word…
- EST (expressed sequence tag) A unique stretch of DNA within a coding region of a gene that is useful for identifying full-length genes and…
- Aural vertigo, recurrent A condition, also known as Meniere's disease, with recurrent vertigo accompanied by ringing in the ears…
- Eyelash One of the familiar stiff hairs that project from the margin of the eyelid. Eyelashes tend to be noticed…